Rockers Hi-Fi is the Birmingham sound system of
Richard "DJ Dick" Whittingham and Glyn Bush.
Their single Push Push (1992) predated all fusions of
dub and house.
Tracks like Stoned and Dick From Outerspace refined the concept.

By merging Tackhead, Lee Perry, Massive Attack and Tricky,
the album Rockers To Rockers (Gee Street, 1995)
lumped them with Bristol's trip-hop movement, although their sound tends
to be far more aggressive and unstable.